Heineich jahn



(No Model.)

H. JAHN.

WINDOW SASH AND FRAME.

Patented Dec. .13, 1887.

i/ZZZ 7 a fliiorneyr witnesses e o/WWW UNITED STATES PATENT OFFICE.

HEINRICH J AHN, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO EDUARDGRUIHN, SAME PLACE.

' WINDOW SASH AND FRAME.

SPECIFICATION forming part of Letters Patent No. 374,793, dated December13, 1887.

Application filed March 14, 1887. Serial No. 230,783. (No model.)

To aZZ whom it may concern:

Be it known that I, HEINRICH J AHN, a citizen of Austria, residing atChicago, in the county of Cook and State of Illinois, haveinventedcertain new and useful Improvements in Window Sash and Frames, which arefully set forth in the following specification, reference being had tothe accompanying drawings, forming a part hereof, and in which- Figure 1shows a vertical transverse section of a wall with a frame and windowcut by a vertical plane. Fig. 2 shows a sash and window of myconstruction in front View. Fig. 3 shows a little more than the lowerhalf of a window-frame, the upper part being broken away, cut by aplane, as shown in Fig. 1, but with the window shown open.

Like letters refer to likeparts.

The object of my invention is to construct a window in which the glassmay be cleaned 'on both sides from the inside of the room; and to thatend I construct my window as follows, namely:

Each sash consists of an outer frame, 6 (the lower) and f, (the upper,)recessed or rabbeted, so as to leave a ledge or stop, '5, on the outerside of the frame for the inner frame, 9, to

strike against. The frame 9 holds the glass h, and is held to the outerframe by butt-hinges k. Bolts or buttonsj, of any well-knownconstruction, hold the inner and outer frames together on the edgeopposite that of the hinges.

Said sash, formed of the parts 6 orfand 9,

may be hung in weights or operated as any ordinary sash between thestopsb c d,- but in order to give working room, so that the upper sash mayhave its glass h opened as the lower one, the window-frame inside of theupper and outer sash is made higher, as shown at l.

The frames e g are shown in section in the lower sash in Fig. 1, and atthe same time the frame 9 is also shown open into the room, making bothsides of the glass h equally accessible.

To get at the upper light, the inner sash is first sent to the top ofthe frame. Then the outer sash is lowered to the bottom of the frame,and then the frame 9 may be opened, as in the former case.

\Vh'at I claim is- A window-sash formed of an outer frame having a stop,1', on each of its four members of the frame, towhich is secured aninner frame fitting within said outer frame and against said stops bymeans of butt-hinges and fastening devices, in combination with awindow-frame having an offset, 1, at its top inside of the upper andouter sash, substantially as specified.

HEINRICH JAHN.

\Vitnesses:

WM. ZIMMERMAN, EDUARD GRUIHN.

